首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The earth is witnessing an urban revolution, as people worldwide crowd into towns and cities. In 1800 only five percent of the w
The earth is witnessing an urban revolution, as people worldwide crowd into towns and cities. In 1800 only five percent of the w
admin
2021-06-15
39
问题
The earth is witnessing an urban revolution, as people worldwide crowd into towns and cities. In 1800 only five percent of the world’s population were urban dwellers; now the proportion has risen to more than forty-five percent, and by the year 2010 more people will live in towns and cities than in the countryside. Humanity will, for the first time, have become a predominantly urban species.
Though the world is getting more crowded by the day, absolute numbers of population are less important than where people concentrate and whether these areas can cope with them. Even densities, however, tell us nothing about the quality of the infrastructure—roads, housing and job creation, for example—or the availability of crucial services.
The main question, then, is not how many people there are in a given area, but how well their needs can be met. Density figures have to be set beside measurements of wealth and employment, the quality of housing and the availability of education, medical care, clean water, sanitation and other vital services. The urban revolution is taking place mainly in the Third World, where it is hardest to accommodate.
Between 1950 and 1985 the number of city dwellers grew more than twice as fast in the Third World as in industrialized countries. During this period, the urban population of the developed world increased from 477 million to 838 million, less than double; but it quadrupled in developing countries, from 286 million to 1. 14 billion. Africa’s urban population is racing along at five percent a year on average, doubling city numbers every fourteen years. By the turn of the century, three in every four Latin Americans will live in urban areas, as will two in every five Asians and one in every three Africans. Developing countries will have to increase their urban facilities by two thirds by then, if they are to maintain even their present inadequate levels of services and housing.
In 1940 only one out of every hundred of the world’s people lived in a really big city, one with a population of over a million. By 1980 this proportion had already risen to one in ten. Two of the world’s biggest cities, Mexico and Sao Paulo, are already bursting at the seams—and their populations are doubling in less than twenty years.
About a third of the people of the Third World’s cities now live in desperately overcrowded slums and squatter settlements. Many are unemployed, uneducated, undernourished and chronically sick. Tens of millions of new people arrive every year, flocking in from the countryside in what is the greatest mass migration in history.
Pushed out of the countryside by rural poverty and drawn to the cities in the hope of a better life, they find no houses waiting for them, no water supplies, no sewerage, no schools. They throw up makeshift hovels, built of whatever they can find: sticks, fronds, cardboard, tar-paper, straw, petrol tins and, if they are lucky, corrugated iron They have to take the land none else wants; land that is too wet, too dry, too steep or too polluted for normal habitation.
Yet all over the world the inhabitants of these apparently hopeless slums show extraordinary enterprise in improving their lives. While many settlements remain stuck in apathy, many others are gradually improved through the vigour and co-operation of their people, who turn flimsy shacks into solid buildings, build school, lay out streets and put in electricity and water supplies.
Governments can help by giving the squatters the right to the land that they have usually occupied illegally, giving them the incentive to improve their homes and neighborhoods. The most important way to ameliorate the effects of the Third World’s exploding cities, however, is to slow down the migration. This involves correcting the bias most governments show towards cities and towns and against the countryside. With few sources of hard currency, though, many governments in developing countries continue to concentrate their limited development efforts in cities and towns, rather than rural areas, where many of the most destitute live. As a result, food production falls as the countryside slides ever deeper into depression.
Since the process of urbanization concentrates people, the demand for basic necessities, like food, energy, drinking water and shelter, is also increased, which can exact a heavy toll on the surrounding countryside. High-quality agricultural land is shrinking in many regions, taken out of production because of over-use and mismanagement. Creeping urbanization could aggravate this situation, further constricting economic development.
The most effective way of tackling poverty, and of stemming urbanization, is to reverse national priorities in many countries, concentrating more resources in rural areas where most poor people still live. This would boost food production and help to build national economies more securely.
Ultimately, though, the choice of priorities comes down to a question of power. The people of the countryside are powerless beside those of the towns; the destitute of the countryside may starve in their scattered millions, whereas the poor concentrated in urban slums pose a constant threat of disorder. In all but a few developing countries the bias towards the cities will therefore continue, as will the migrations that are swelling their numbers beyond control.
The urban population of the world______.
选项
A、has risen to around forty percent in the last 200 years
B、will have risen to more than fifty percent by the year 2010
C、has risen by forty-five percent since 1800
D、will live in cities for the first time
答案
B
解析
本题的四个选项中,只有B项为正确答案。这可从文中第一段的第三句话“and by the year 2010 more people will live in towns and cities than in the countryside.”推知。
转载请注明原文地址:https://kaotiyun.com/show/5DTO777K
0
考博英语
相关试题推荐
Recentresearchfromanimalbehavioristssuggeststhat"asthecrowflies"shouldnolongerbetakentomean"theshortestdista
Recentresearchfromanimalbehavioristssuggeststhat"asthecrowflies"shouldnolongerbetakentomean"theshortestdista
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcenturyandthediffusionofprintinginthe15thand
Ifbookshadneverbeendiscovered,manwouldhavefoundsomeotherwayofrecordinghiscommunication.Butthen,forourconsid
It’snevereasyforamightymilitarytotreadlightlyonforeignsoil.InthecaseofAmericanforcesinSouthKorea,protector
Childrentendto______whileplaying,eveniftheymakeapromisebefore.
Shehasbeen______forfivemonthsandinanotherfivemonths’timeshewillbemother.
Reportsthatthegeneralistobedismissedaregaining______amonggovernmentministers.
MichaelfounditdifficulttogethisBritishjokes______toAmericanaudiences.
Theathletepractisedstrenuouslyinorderto______onhispreviousrecord.
随机试题
男,31岁。5年前因阑尾炎穿孑L腹膜炎做过手术。3日前出现腹痛、腹胀,伴呕吐、肛门停止排气排便,经检查诊断为肠梗阻,最重要的是判断梗阻
在洁净空调工程施工中,风管加固可采用的方法为()。
按照“施工合同”,对于隐蔽工程( )。
安全警示标志,一般由________、几何图形和图形符号构成。()
工程成本核算的任务中,项目成本核算的主体和中心任务是()。
上市客户法人治理结构不完善的表现有()
合并财务报表准则也允许企业直接在对子公司的长期股权投资采用成本法核算的基础上编制合并财务报表,但是所生成的合并财务报表应当符合合并财务报表准则的相关规定。()
纳税人接受捐赠的货币性收入属于应税收入,纳税人接受捐赠的非货币性资产不属于应税收入。()
运动性心脏肥大是运动心脏的主要形态特征,可发生在左右心室和心房,但以_______为主。
法国作家儒勒•凡尔纳的小说《格兰特船长的儿女》讲述了英国公爵根据漂流瓶提供的不完整信息,乘坐“邓肯号”,率领探险队沿着南纬37°一带,援救格兰特船长的故事。(1)“邓肯号”于1864年8月25日离开英国格拉斯哥,经过多天航行,绕过麦哲伦海峡于10月6
最新回复
(
0
)